Summary of Sales by End Market (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation Of Revenue [Line Items]
Net revenue	$ 39,188	$ 22,780	$ 37,799
End-customer
Disaggregation Of Revenue [Line Items]
Net revenue	25,384	16,195	25,173
Distributors
Disaggregation Of Revenue [Line Items]
Net revenue	$ 13,804	$ 6,585	$ 12,626